/*
 * Copyright (c) 2009, The MilkyTracker Team.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - Neither the name of the <ORGANIZATION> nor the names of its contributors
 *   may be used to endorse or promote products derived from this software
 *   without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

/*
 *  AudioDriver_JACK.h
 *  JACK Audio
 *
 *  Created by Christopher O'Neill on 8/12/07
 *
 *
 */
#ifndef __AUDIODRIVER_JACK_H__
#define __AUDIODRIVER_JACK_H__

#include "AudioDriver_COMPENSATE.h"
#include <jack/jack.h>

class AudioDriver_JACK : public AudioDriver_COMPENSATE
{
    private:
        jack_client_t* hJack;
        jack_port_t* leftPort, * rightPort;
        mp_sword* rawStream;
        int jackFrames;
        bool paused;
        void* libJack;

        static int jackProcess(jack_nframes_t nframes, void* arg);

        // Jack library functions
        jack_client_t*(*jack_client_new)(const char* client_name);
        int (* jack_client_close)(jack_client_t* client);
        int (* jack_set_process_callback)(jack_client_t* client,
                                          JackProcessCallback process_callback,
                                          void* arg);
        int (* jack_activate)(jack_client_t* client);
        int (* jack_deactivate)(jack_client_t* client);
        jack_port_t*(*jack_port_register)(jack_client_t * client,
                                          const char* port_name,
                                          const char* port_type,
                                          unsigned long flags,
                                          unsigned long buffer_size);
        void*(*jack_port_get_buffer)(jack_port_t *, jack_nframes_t);
        jack_nframes_t (* jack_get_buffer_size)(jack_client_t*);
        jack_nframes_t (* jack_get_sample_rate)(jack_client_t*);
    public:
        AudioDriver_JACK ();

        virtual ~AudioDriver_JACK ();

        virtual mp_sint32 initDevice(mp_sint32 bufferSizeInWords, mp_uint32 mixFrequency, MasterMixer* mixer);
        virtual mp_sint32 closeDevice();

        virtual mp_sint32 start();
        virtual mp_sint32 stop();

        virtual mp_sint32 pause();
        virtual mp_sint32 resume();

        virtual bool supportsPowerOfTwoCompensation() {
            return true;
        }

        virtual const char * getDriverID() {
            return "JACK";
        }
        virtual mp_sint32 getPreferredBufferSize() const {
            return 2048;
        }

};

#endif